Straw and chaff separator and stacker.



H. P. MOHR. STRAW AND UHAFF SEPARATOR AND STAGKER.

APPLICATION FILED NOV. 9, 1908.

Patented Feb. 15, 1910.

s SHEETS-SHEET 1.

Patented Feb. 15, 1910.

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li-lll 1 .1? MW fiiiorngw H. P. MOHR. STRAW AND CHAPF SEPARATOR ANDSTACKER. APPLICATION FILED NOV. 9, 190B.

WWW/- H. P. MOHR.

STRAW AND GHAFF SEPARATOR AND STAGKER.

APPLICATION FILED NOV. 0, 1908. 949,361. Patented Feb. 15,1910.

6 SHEETS-SHEET 3.

H. P. MOHR. STRAW AND CHAPI' SEPARATOR AND STAGKER. APPLICATION FILEDnovfa, 1903.

949,361. Patented Feb. 15, 1910.

5 SHEETS-SHEET 4.

Witnesses. Inventor.

y H nry F. mohr.

H. P MOHR. STRAW AND CHAFF SEPARATOR AND STAGKER.

APPLICATION FILED NOV. 9, 1908.

949,36 1 Patented Feb. 15, 1910.

5 SHEETS-SHEET 5.

Invenbor wionessefi.

ANDREW n. mun/m cu. Pnovoumocnuuzns. wnamuawu. 10

nnrrn HENRY P. MOI-IR, 0F PLEASANTON,

CALIFORNIA.

STRAW AND CHAFF SEPARATOR AND STACKER.

Specification of Letters Patent.

Application filed November 9, 1908.

Serial No. 461,679.

To all whom it may concern:

Be it known that I, HENRY P. M01111, a citizen of the United States,residing at Pleasanton, in the county of Alameda and State ofCalifornia, have invented a new and useful Straw and Chaff Separator andStacker, of which the following is a specification in such full andclear terms as will enable those skilled in the art to construct and usethe same.

This invention relates to a combined straw and chaff separator andstacker of the pneumatic type.

The invention is intended for handling the straw and chaff from athreshing machine, stacking each in a separate pile whereby the sale ofthe straw is improved for the reason that persons buying straw do notwant a mass of fine chaff with it.

An object of the invention is to take a portion of the air from themachine with one set of fans in order to take away the dust and thechaff, while the second set of fans which handles the heavy straw takesall the air used by them from the atmosphere outside the threshingmachine, the reason for this lying in the fact that the straw fans musthandle a very large amount of air, and if this air is taken from the endof the threshing machine where the same is open it would interfere withthe action of i the separating screens at the back of the thresher.

Another object of the invention is to produce a stacking and separatingattachment which may be attached to almost any threshing niachlne bysimply setting it on the sills of the machine and bolting it in place.

Another object of the machine is to make 1 use of a plurality of fans,whereby the air is more uniformly blown and whereby smaller amounts ofthe chaff are handled by each fan, two fans being provided for the chaffand two for the straw.

Another object of the invention is to so arrange the four fans as torequire but a single belt and shaft to drive all of them.

Another object of the invention is to provide means for preventing theair from passing to one fan and not to the other, as is the case wheretwo fans are close together, with a resultant efficiency of service.

In the drawings, in which the same character of reference is applied tothe same portion throughout, Figure 1 1s a plan view of the machine withcertain parts broken away to show the fans underneath, Fig. 2 is a rearview of the machine, Fig. 3 is a side elevation showing the relation ofthe straw rack and separating shoe in dotted lines, and Figs. 1 and 5are vertical sectional views on the lines l1 and 5-5 of Fig. 1,respectively.

The separator is built on the sills 1 which are secured to the end sillsof any threshing machine. The sills 1 are secured together by means ofthe cross ties 9., 3 and 4, the former at the rear of the separator, 3at the front end next the threshing machine and the latter near the rearof the fan cases, and extending far enough beyond each side sill tosupport the outer sills 5 of the chafi fans. Secured on the top of thesills 1 are four posts 6, to which in turn are secured the top plates 7,7 and S, S. the two latter being parallel to the longitudinal sills ofthe threshing machine. The frame thus produccd is suitably covered onthe sides and end away from the threshing machine.

Extending across the sills 5 and l, is a long shaft 9 which is supportedat the center by means of a sill 10 which runs parallel to the sidesills 1. This shaft 9 is journaled in boxes 11, 12 and 13, and has apulley 14: on the end next the box 13, said pulley being operated fromany suitable portion of the driving mechanism of the threshing inn--chine. This shaft 9 supports four fans 15, 16, 17, and 18, the formerand the latter being secured to the shaft near the ends thereof, andcarrying the chaff away from the machine. The fans 16 and 17 are securedto the shaft near the middle thereof and handle the straw entirely. Thefans 15 and 18 have cases 19 with eyes on one side only, that is next tothe outer casing of the frame of the separator, and to which eyes asheet metal hopper having the sides 20, 21 and 22, leads there being onehopper for each fan 15 and 18. This hopper is supported by means of thepost 6, the fan case 23, and the outer sill 1. The outer supportingsills for the fan shaft 9 are held firmly in place by means of thebraces 24, 25 and 29, the latter of which runs from the front end of theseparator around to the rear of the same, bolts being used to secure thesame to the sills 1, and to the sills 5. The braces 24 and 25 aresecured at one end to the upright posts 6 and at the other end to thesills 5, for the fans at each end of the shaft 9 are equipped the sameway.

Patented Feb. 15, 1910.

The two straw fans take their supply of air from below, the hoppersleading to the chaff fans at the ends of the shaft 9, the side 21 of thechaff hopper being secured along its upper edge to the case of the strawfan, thus leaving an opening for the ingress of the air to the fan case.The cases of both straw fans are provided with eyes on both sidesthereof, and since the straw fans are very close together, a board 30 isprovided, to prevent the air from surging first to one of the fans andthen to the other, whereby the air supply of both fans is maintainedconstant. The two straw fans discharge through nozzles 31 at the frontend of the pan 32, said pan merging into a tapering pipe at 33 where thestacker pipe is connected to it. This pan 32 is at the bottom of thehopper formed by the sides 3%, 35 and 36, into which the straw dropsfrom the straw carrier, shown in dotted lines above the stacker. At thetop of the incline 35 there is placed a vertical board 37 which is forthe purpose of preventing the straw from falling into the chaff hoppers,and also for the purpose of preventing the chaff from being blown overfrom the shoe S, shown in dotted lines, into the straw pan. This board37 rests on a cross piece 38 which is secured at its ends to the frameof the separator, and it touches the inclines 39, 40 which form a roofover the top of the straw fans to prevent the chaff from piling up onthem, said inclines making with the sides of the frame an extension ofthe chaff hoppers leading to the chafi fans. This roof inclines upwardlyfrom the separating shoe S of the thresher, the top being on about atthe same level at said shoe while it is some higher at the board 37.

It will be noted that while short chutes are shown on the straw pan andon the chaff fans that it is the intention to use such length chutes asmay be deemed necessary in the work to be done.

The operation of the device is simple, the fan shaft being connectedwith any suitable pulley of the threshing machine, the straw passes fromthe straw carrier R and drops into the chute at the rear of the framewhere the blasts from the two straw fans blow it up the straw pipe, thechafi from the grain .shoe is dropped into the hoppers at the front ofthe frame, that is the end of the frame next the thresher, and the chafffans deliver the chaff to suitable chaff pipes which lead the same toany desired distance.

It is to be noted that an essential feature of the invention lies in theuse of large fans to handle the straw, while the air to supply them isdrawn from a source where it will not disturb the currents of air nearthe separating shoe.

Having thus described my invention what I claim as new and desire tosecure by Let ters Patent of the United States is as follows:

1. In a straw and chaff separator and stacker, a frame, a shaft carriedby the frame, hoppers supported by the frame, a plurality of fanscarried by the shaft, means to restrict the air drawn into the outerfans to the space above the hoppers, partitions to restrict the airdrawn into the inner set of fans to the space below the sides of thehoppers, and a transverse partition to direct the chaff into the saidhoppers, as set forth.

2. In a straw and chaff separator and stacker, a frame, a transverseshaft carried thereby, a plurality of fans secured to the shaft, hoppersleading to the two outside fans for elevating the chaff, a single hopperleading to the nozzles from the inner set of fans, and a discharge pipefor the straw into which the inner set of fans discharge.

3. In a straw and chad separator and stacker, a frame, a shaft carriedtransversely of said frame, a plurality of fans carried by said shaft,hoppers leading to the outer set of fans, a straw pan, a hopper leadingto said pan, discharge pipes leading from the inner set of fans to thestraw pan, and a discharge pipe for the straw.

a. In a straw and chaff separator and stacker, a frame adapted to besecured to the sills of a threshing machine, a transverse shaft carried.by the frame, a plurality of fans carried by the shaft, hoppers leadingto the outer set of fans and adapted to direct the chaff thereto, astraw pan, pipes leading from the inner fans to the straw pan, a discharge pipe for the straw, and a partition board adapted to prevent thechaff from blowing into the straw hopper.

5. In a straw and chaff separator and stacker, a frame adapted to besecured to the sills of a threshing machine, a shaft carried by theframe, a series of fans carried thereby, hoppers leading to the outerset of fans and adapted to direct the chaff thereto, a straw pan,discharge pipes leading from the inner fans to the straw pan, adischarge pipe leading from the straw pan, a transverse board adapted toprevent the chaff from passing into the straw pan, and a partition boardbetween the two inner fans for preventing one fan from interfering withthe action of the second fan.

6. In a straw and chaff separator and stacker, a frame, a shaft carriedby said frame and extending transversely thereof, a plurality of fanscarried by said shaft, hoppers leading to the outer fans and adapted tolead the chaff to said fans, a hopper leading to the rear of the centerset of fans, a straw pan into which said hopper discharges, air pipesleading into the straw pan from the inner set of fans, a board adaptedto prevent the chaff from passing into the straw pan, and inclinesleading to the hoppers of the outer fans whereby substantially one halfthe chaff is fed to each of said fans.

7. In a straw and chaff separator and. stacker, a frame, a transverseshaft carried thereby, four fans on said shaft, a hopper leading to eachouter fan, means to direct substantially one half the chaff to each ofsaid hoppers, a straw pan, a hopper to direct the straw to said strawpan, pipes leading from the two inner fans to the straw pan, and adischarge pipe leading from the straw pan and into which the air fromthe two inner fans is directed.

In testimony whereof I have set my hand this 2nd day of November, A. D.1908, in the presence of the two subscribed witnesses.

HENRY P. MOHR.

Vitnesscs AUGUST PIERAGS, VAT/PER J. SCIIMEEN.

